Mixing and kneading machine.



F- GOGER. MIXING AND KNEADING MACHINE. APPLICATION FILED sew. 2 9. I916.

Patented Julie 5, 1917.

WIT/V588:

FRANK GOGER, OF PATEBSON, NEW JERSEY.

MIXING AND KNEADING IVIACHINE.

maasso.

Specification of Letters Patent.

Patented June 5, 1917.

Application filed September 29, 1916. Serial No. 122,809.

To all whom it may concern:

Be it known that I, FRANK Goonn, a subject of the Emperor of Austria, residing at Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Mixing and Kneading Machines, of which the following is a specification.

The object of this invention is to provide a machine for mixing and kneading viscous materials, and especially dough, whereby these treatments may be effected with greater thoroughness and expedition than is possible by machines at present in use. My machine distinguishes from those heretofore devised in that the agitators ooact, in effecting the mixing and kneading, to tear apart or shred the materials when they have reached the more or less viscous state, thus to enhance the thoroughness of the action and consequently quicken the treatment. This result I have obtained by providing, in a suitable receptacle for the materials to be mixed and kneaded, a pair of agitators journaled on horizontal axes and arranged in parallel planes, said agitators being substantial counterparts of each other and each having a series of counterpart beaters projecting alternately in opposite directions from the axis of said agitator, each beater of one agitator being arranged to pass between two beaters of the other in their rotation, together with means to rotate said agitators'in the same direction and at the same speed. In the preferred form each heater is substantially U-shaped so that the heaters at all points play in close relation those of one agitator to those of the other and may be adapted to play also in close re lation to the inner surfaces of the receptacle.

In the accompanying drawing,

Figure l is an end elevation of the machine;

Fi 2 is a transverse sectional view on line 2-2 of Fig. 3;

Fig. 3 is a plan; and,

Figs. 4 and 5 illustrate details.

In a pair of standards a is supported the receptacle 5 preferably in such manner that it may be tilted to discharge its contents; that is, said receptacle is hung in the standards on trunnions c, and is provided with a toothed segment (Z secured to one end and a worm cl, meshing with said segment and journaled in the adjoining standard, whereby to move the receptacle on its trunnions from the position shown in Fig. 1 to that shown in Fig. 2.

In plan the receptacle is rectangular; in end elevation, its bottom has each half formed as part of a cylinder.

In the end walls of the receptacle are journaled trunnions e which are held in place by the screws f entering circumferential grooves g in said trunnions; the inner end of each trunnion is flattened, as at it. There are two pairs of these trunnions, arranged on parallel axes. Each pair of trunnions carries an agitator. The agitators are counterparts of each other, each consisting of a series of preferably U-shaped beaters i which are counterparts of each other, project alternately in opposite directions from the axis of the agitator and are arranged in the same plane. Each two adjoining (oppositely projecting) beaters are joined by the axial portion j, which in the present construction is integral therewith. Having placed the agitators in the receptacle, the trunnions e are entered into their bearings with their inner ends entered in holes h, of similar crosssectional shape, in the axial parts of the end legs (Fig. 4) of the agitators. The tators are so arranged with reference to each other that in their rotation the beaters of the one play between the beaters of the other and near the axis of rotation thereof.

On each trunnion e in each pair is fixed a spur-wheel 7c. Meshing with these is a gear wheel Z j ournaled on the adjoining trunnion o and having a sprocket-and-chain connection m with a suitably driven driveshaft 41.. The spur-wheels 7c are of the same size, in consequence of which and their being in common geared with the wheel Z the agitators are rotated, as stated, at the same speed and in the same direction.

The end legs of each agitator further are preferably knife-shaped in cross-section (Fig. 5) and bear flat against the end walls of the receptacle Z), so as to clear the same of adhering material. Moreover, the radius of each agitatoris preferably such that each beater thereof as it rotates will move in close proximity to the corresponding part-cylindrical half of the bottom of the receptacle;

thus, particularly as the beaters are substantially U-shaped, practically every part of the material in the receptacle is within the range of agitation.

The arrangement (maintained by the gearing) of the agitators in parallel planes and their rotation in the same direction and at the same speed, taken with the heaters alternately projecting oppositely from the axis of each agitator and the heaters of one playing between the fields of rotation of the heaters of the other, has the very important advantages already indicated, to

wit, that, since each agitator. tends. to carry around its own axis approximately one-half of the material, and the masses of material thus respectively influenced by theagitators are brought together where their boaters pass each other and then,- momentarily formed into one mass, are torn into fragments or shreds, which again form into masses to be respectively carried around again by the agitators, the mixing and being noted that the receptacle is tilted op Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' positely to the direction of working rotation of the agitators. Preferably, each agitator is formed from a single length of metal bent into the shape required to produce the U-shaped beaters and the axial portions j.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is: I

In combination, a receptacle, a pair of substantially counterpart agitators journaled in said receptacle on horizontal parallel axes and each includingv a series of substantially counterpart U-sh'aped beaters projecting alternately in opposite directions from the axis of said agitator and alined axial portions y' alternating with said beaters and spaced from each other, said agitators being arranged in substantially parallel planes and so that each beater of either is opposite the corresponding beater of the other and so that on the rotation of the agitators the heaters of either move between the beaters, and near to the axis, of the other agitator, and means to rotate said agitators in unison in the same direction and at the same speed.

In testimony whereof I aflix my signature.

FRANK GOGER.

Washington, D. C. 

